greptimedb/tests/cases/distributed/explain/subqueries.result

CREATE TABLE integers(i INTEGER, j TIMESTAMP TIME INDEX);

Affected Rows: 0

-- SQLNESS REPLACE (-+) -
-- SQLNESS REPLACE (\s\s+) _
-- SQLNESS REPLACE (RoundRobinBatch.*) REDACTED
-- SQLNESS REPLACE (Hash.*) REDACTED
-- SQLNESS REPLACE (peers.*) REDACTED
EXPLAIN SELECT * FROM integers WHERE i IN ((SELECT i FROM integers)) ORDER BY i;

+-+-+
| plan_type_| plan_|
+-+-+
| logical_plan_| Sort: integers.i ASC NULLS LAST_|
|_|_LeftSemi Join: integers.i = __correlated_sq_1.i_|
|_|_MergeScan [is_placeholder=false, remote_input=[_|
|_| Filter: integers.i IS NOT NULL_|
|_|_TableScan: integers, partial_filters=[integers.i IS NOT NULL]_|
|_| ]]_|
|_|_MergeScan [is_placeholder=false, remote_input=[_|
|_| SubqueryAlias: __correlated_sq_1_|
|_|_Projection: integers.i_|
|_|_Filter: integers.i IS NOT NULL_|
|_|_TableScan: integers, partial_filters=[integers.i IS NOT NULL]_|
|_| ]]_|
| physical_plan | SortPreservingMergeExec: [i@0 ASC NULLS LAST]_|
|_|_SortExec: expr=[i@0 ASC NULLS LAST], preserve_partitioning=[true]_|
|_|_REDACTED
|_|_RepartitionExec: partitioning=REDACTED
|_|_MergeScanExec: REDACTED
|_|_RepartitionExec: partitioning=REDACTED
|_|_MergeScanExec: REDACTED
|_|_|
+-+-+

-- SQLNESS REPLACE (-+) -
-- SQLNESS REPLACE (\s\s+) _
-- SQLNESS REPLACE (RoundRobinBatch.*) REDACTED
-- SQLNESS REPLACE (Hash.*) REDACTED
-- SQLNESS REPLACE (peers.*) REDACTED
EXPLAIN SELECT * FROM integers i1 WHERE EXISTS(SELECT i FROM integers WHERE i=i1.i) ORDER BY i1.i;

+-+-+
| plan_type_| plan_|
+-+-+
| logical_plan_| Sort: i1.i ASC NULLS LAST_|
|_|_LeftSemi Join: i1.i = __correlated_sq_1.i_|
|_|_MergeScan [is_placeholder=false, remote_input=[_|
|_| SubqueryAlias: i1_|
|_|_Filter: integers.i IS NOT NULL_|
|_|_TableScan: integers, partial_filters=[integers.i IS NOT NULL]_|
|_| ]]_|
|_|_MergeScan [is_placeholder=false, remote_input=[_|
|_| SubqueryAlias: __correlated_sq_1_|
|_|_Projection: integers.i_|
|_|_Filter: integers.i IS NOT NULL_|
|_|_TableScan: integers, partial_filters=[integers.i IS NOT NULL]_|
|_| ]]_|
| physical_plan | SortPreservingMergeExec: [i@0 ASC NULLS LAST]_|
|_|_SortExec: expr=[i@0 ASC NULLS LAST], preserve_partitioning=[true]_|
|_|_REDACTED
|_|_RepartitionExec: partitioning=REDACTED
|_|_MergeScanExec: REDACTED
|_|_RepartitionExec: partitioning=REDACTED
|_|_MergeScanExec: REDACTED
|_|_|
+-+-+

create table other (i INTEGER, j TIMESTAMP TIME INDEX);

Affected Rows: 0

-- SQLNESS REPLACE (-+) -
-- SQLNESS REPLACE (\s\s+) _
-- SQLNESS REPLACE (RoundRobinBatch.*) REDACTED
-- SQLNESS REPLACE (Hash.*) REDACTED
-- SQLNESS REPLACE (peers.*) REDACTED
explain select t.i
from (
    select * from integers join other on 1=1
) t
where t.i is not null
order by t.i desc;

+-+-+
| plan_type_| plan_|
+-+-+
| logical_plan_| Sort: t.i DESC NULLS FIRST_|
|_|_SubqueryAlias: t_|
|_|_Cross Join:_|
|_|_Projection: integers.i_|
|_|_MergeScan [is_placeholder=false, remote_input=[_|
|_| Filter: integers.i IS NOT NULL AND Boolean(true)_|
|_|_TableScan: integers, partial_filters=[integers.i IS NOT NULL, Boolean(true)] |
|_| ]]_|
|_|_Projection:_|
|_|_MergeScan [is_placeholder=false, remote_input=[_|
|_| TableScan: other_|
|_| ]]_|
| physical_plan | SortPreservingMergeExec: [i@0 DESC]_|
|_|_SortExec: expr=[i@0 DESC], preserve_partitioning=[true]_|
|_|_CrossJoinExec_|
|_|_CoalescePartitionsExec_|
|_|_ProjectionExec: expr=[i@0 as i]_|
|_|_MergeScanExec: REDACTED
|_|_ProjectionExec: expr=[]_|
|_|_MergeScanExec: REDACTED
|_|_|
+-+-+

INSERT INTO other SELECT i, 2 FROM integers WHERE i=(SELECT MAX(i) FROM integers);

Affected Rows: 0

-- Explain physical plan for DML is not supported because it looks up the table name in a way that is
-- different from normal queries. It also requires the table provider to implement the `insert_into()` method.
EXPLAIN INSERT INTO other SELECT i, 2 FROM integers WHERE i=(SELECT MAX(i) FROM integers);

+---------------------+-----------------------------------------------------------------------------+
| plan_type           | plan                                                                        |
+---------------------+-----------------------------------------------------------------------------+
| logical_plan        | Dml: op=[Insert Into] table=[other]                                         |
|                     |   Projection: integers.i AS i, TimestampMillisecond(2, None) AS j           |
|                     |     Inner Join: integers.i = __scalar_sq_1.max(integers.i)                  |
|                     |       Projection: integers.i                                                |
|                     |         MergeScan [is_placeholder=false, remote_input=[                     |
|                     | TableScan: integers                                                         |
|                     | ]]                                                                          |
|                     |       MergeScan [is_placeholder=false, remote_input=[                       |
|                     | SubqueryAlias: __scalar_sq_1                                                |
|                     |   Projection: max(integers.i)                                               |
|                     |     Aggregate: groupBy=[[]], aggr=[[max(integers.i)]]                       |
|                     |       TableScan: integers, partial_filters=[Boolean(true)]                  |
|                     | ]]                                                                          |
| physical_plan_error | This feature is not implemented: Insert into not implemented for this table |
+---------------------+-----------------------------------------------------------------------------+

drop table other;

Affected Rows: 0

drop table integers;

Affected Rows: 0

CREATE TABLE integers(i INTEGER, j TIMESTAMP TIME INDEX)
PARTITION ON COLUMNS (i) (
  i < 1000,
  i >= 1000 AND i < 2000,
  i >= 2000
);

Affected Rows: 0

-- SQLNESS REPLACE (-+) -
-- SQLNESS REPLACE (\s\s+) _
-- SQLNESS REPLACE (RoundRobinBatch.*) REDACTED
-- SQLNESS REPLACE (Hash.*) REDACTED
-- SQLNESS REPLACE (peers.*) REDACTED
EXPLAIN SELECT * FROM integers i1 WHERE EXISTS(SELECT i FROM integers WHERE i=i1.i) ORDER BY i1.i;

+-+-+
| plan_type_| plan_|
+-+-+
| logical_plan_| Sort: i1.i ASC NULLS LAST_|
|_|_LeftSemi Join: i1.i = __correlated_sq_1.i_|
|_|_MergeScan [is_placeholder=false, remote_input=[_|
|_| SubqueryAlias: i1_|
|_|_Filter: integers.i IS NOT NULL_|
|_|_TableScan: integers, partial_filters=[integers.i IS NOT NULL]_|
|_| ]]_|
|_|_MergeScan [is_placeholder=false, remote_input=[_|
|_| SubqueryAlias: __correlated_sq_1_|
|_|_Projection: integers.i_|
|_|_Filter: integers.i IS NOT NULL_|
|_|_TableScan: integers, partial_filters=[integers.i IS NOT NULL]_|
|_| ]]_|
| physical_plan | SortPreservingMergeExec: [i@0 ASC NULLS LAST]_|
|_|_SortExec: expr=[i@0 ASC NULLS LAST], preserve_partitioning=[true]_|
|_|_REDACTED
|_|_MergeScanExec: REDACTED
|_|_MergeScanExec: REDACTED
|_|_|
+-+-+

-- SQLNESS REPLACE (-+) -
-- SQLNESS REPLACE (\s\s+) _
-- SQLNESS REPLACE (RoundRobinBatch.*) REDACTED
-- SQLNESS REPLACE (Hash.*) REDACTED
-- SQLNESS REPLACE (peers.*) REDACTED
EXPLAIN SELECT * FROM integers i1 WHERE EXISTS(SELECT count(i) FROM integers WHERE i=i1.i) ORDER BY i1.i;

+-+-+
| plan_type_| plan_|
+-+-+
| logical_plan_| Sort: i1.i ASC NULLS LAST_|
|_|_LeftSemi Join: i1.i = __correlated_sq_1.i_|
|_|_MergeScan [is_placeholder=false, remote_input=[_|
|_| SubqueryAlias: i1_|
|_|_Filter: integers.i IS NOT NULL_|
|_|_TableScan: integers, partial_filters=[integers.i IS NOT NULL]_|
|_| ]]_|
|_|_Projection: __correlated_sq_1.i_|
|_|_MergeScan [is_placeholder=false, remote_input=[_|
|_| SubqueryAlias: __correlated_sq_1_|
|_|_Projection: count(integers.i), integers.i_|
|_|_Aggregate: groupBy=[[integers.i]], aggr=[[count(integers.i)]]_|
|_|_Filter: integers.i IS NOT NULL_|
|_|_TableScan: integers, partial_filters=[integers.i IS NOT NULL]_|
|_| ]]_|
| physical_plan | SortPreservingMergeExec: [i@0 ASC NULLS LAST]_|
|_|_SortExec: expr=[i@0 ASC NULLS LAST], preserve_partitioning=[true]_|
|_|_REDACTED
|_|_MergeScanExec: REDACTED
|_|_ProjectionExec: expr=[i@1 as i]_|
|_|_MergeScanExec: REDACTED
|_|_|
+-+-+

DROP TABLE integers;

Affected Rows: 0

CREATE TABLE t(ts timestamp time index, a INT, b INT)PARTITION ON COLUMNS (a) (
  a < 1000,
  a >= 1000 AND a < 2000,
  a >= 2000
);

Affected Rows: 0

CREATE TABLE t1(ts timestamp time index, a INT)PARTITION ON COLUMNS (a) (
  a < 1000,
  a >= 1000 AND a < 2000,
  a >= 2000
);

Affected Rows: 0

CREATE TABLE t2(ts timestamp time index, a INT)PARTITION ON COLUMNS (a) (
  a < 1000,
  a >= 1000 AND a < 2000,
  a >= 2000
);

Affected Rows: 0

INSERT INTO t(ts,a,b) VALUES (1,3,30),(2,1,10),(3,2,20);

Affected Rows: 3

INSERT INTO t1(ts,a) VALUES (1,1),(2,3);

Affected Rows: 2

INSERT INTO t2(ts,a) VALUES (1,2),(2,3);

Affected Rows: 2

SELECT x FROM (SELECT a AS x FROM t) sq ORDER BY x;

+---+
| x |
+---+
| 1 |
| 2 |
| 3 |
+---+

-- expected: 1,2,3
-- SQLNESS REPLACE (-+) -
-- SQLNESS REPLACE (\s\s+) _
-- SQLNESS REPLACE (RoundRobinBatch.*) REDACTED
-- SQLNESS REPLACE (Hash.*) REDACTED
-- SQLNESS REPLACE (peers.*) REDACTED
EXPLAIN SELECT x FROM (SELECT a AS x FROM t) sq ORDER BY x;

+-+-+
| plan_type_| plan_|
+-+-+
| logical_plan_| MergeSort: sq.x ASC NULLS LAST_|
|_|_MergeScan [is_placeholder=false, remote_input=[_|
|_| Sort: sq.x ASC NULLS LAST_|
|_|_Projection: sq.x_|
|_|_SubqueryAlias: sq_|
|_|_Projection: t.a AS x_|
|_|_TableScan: t_|
|_| ]]_|
| physical_plan | SortPreservingMergeExec: [x@0 ASC NULLS LAST]_|
|_|_MergeScanExec: REDACTED
|_|_|
+-+-+

SELECT x, COUNT(*) AS c FROM (SELECT a AS x FROM t) sq GROUP BY x ORDER BY x;

+---+---+
| x | c |
+---+---+
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
+---+---+

-- expected:
-- x | c
-- 1 | 1
-- 2 | 1
-- 3 | 1
-- SQLNESS REPLACE (-+) -
-- SQLNESS REPLACE (\s\s+) _
-- SQLNESS REPLACE (RoundRobinBatch.*) REDACTED
-- SQLNESS REPLACE (Hash.*) REDACTED
-- SQLNESS REPLACE (peers.*) REDACTED
EXPLAIN SELECT x, COUNT(*) AS c FROM (SELECT a AS x FROM t) sq GROUP BY x ORDER BY x;

+-+-+
| plan_type_| plan_|
+-+-+
| logical_plan_| MergeSort: sq.x ASC NULLS LAST_|
|_|_MergeScan [is_placeholder=false, remote_input=[_|
|_| Sort: sq.x ASC NULLS LAST_|
|_|_Projection: sq.x, count(Int64(1)) AS count(*) AS c_|
|_|_Aggregate: groupBy=[[sq.x]], aggr=[[count(Int64(1))]]_|
|_|_SubqueryAlias: sq_|
|_|_Projection: t.a AS x_|
|_|_TableScan: t_|
|_| ]]_|
| physical_plan | SortPreservingMergeExec: [x@0 ASC NULLS LAST]_|
|_|_MergeScanExec: REDACTED
|_|_|
+-+-+

SELECT DISTINCT x FROM (SELECT a AS x FROM t) sq ORDER BY x;

+---+
| x |
+---+
| 1 |
| 2 |
| 3 |
+---+

-- expecetd: 1,2,3
-- SQLNESS REPLACE (-+) -
-- SQLNESS REPLACE (\s\s+) _
-- SQLNESS REPLACE (RoundRobinBatch.*) REDACTED
-- SQLNESS REPLACE (Hash.*) REDACTED
-- SQLNESS REPLACE (peers.*) REDACTED
EXPLAIN SELECT DISTINCT x FROM (SELECT a AS x FROM t) sq ORDER BY x;

+-+-+
| plan_type_| plan_|
+-+-+
| logical_plan_| Sort: sq.x ASC NULLS LAST_|
|_|_Aggregate: groupBy=[[sq.x]], aggr=[[]]_|
|_|_MergeScan [is_placeholder=false, remote_input=[_|
|_| Distinct:_|
|_|_Projection: sq.x_|
|_|_SubqueryAlias: sq_|
|_|_Projection: t.a AS x_|
|_|_TableScan: t_|
|_| ]]_|
| physical_plan | SortPreservingMergeExec: [x@0 ASC NULLS LAST]_|
|_|_SortExec: expr=[x@0 ASC NULLS LAST], preserve_partitioning=[true]_|
|_|_AggregateExec: mode=SinglePartitioned, gby=[x@0 as x], aggr=[]_|
|_|_MergeScanExec: REDACTED
|_|_|
+-+-+

SELECT sq.x FROM (SELECT a AS x FROM t) sq ORDER BY sq.x;

+---+
| x |
+---+
| 1 |
| 2 |
| 3 |
+---+

-- expected: 1,2,3
-- SQLNESS REPLACE (-+) -
-- SQLNESS REPLACE (\s\s+) _
-- SQLNESS REPLACE (RoundRobinBatch.*) REDACTED
-- SQLNESS REPLACE (Hash.*) REDACTED
-- SQLNESS REPLACE (peers.*) REDACTED
EXPLAIN SELECT sq.x FROM (SELECT a AS x FROM t) sq ORDER BY sq.x;

+-+-+
| plan_type_| plan_|
+-+-+
| logical_plan_| MergeSort: sq.x ASC NULLS LAST_|
|_|_MergeScan [is_placeholder=false, remote_input=[_|
|_| Sort: sq.x ASC NULLS LAST_|
|_|_Projection: sq.x_|
|_|_SubqueryAlias: sq_|
|_|_Projection: t.a AS x_|
|_|_TableScan: t_|
|_| ]]_|
| physical_plan | SortPreservingMergeExec: [x@0 ASC NULLS LAST]_|
|_|_MergeScanExec: REDACTED
|_|_|
+-+-+

SELECT y FROM (SELECT x AS y FROM (SELECT a AS x FROM t) sq1) sq2 ORDER BY y;

+---+
| y |
+---+
| 1 |
| 2 |
| 3 |
+---+

-- expected: 1,2,3
-- SQLNESS REPLACE (-+) -
-- SQLNESS REPLACE (\s\s+) _
-- SQLNESS REPLACE (RoundRobinBatch.*) REDACTED
-- SQLNESS REPLACE (Hash.*) REDACTED
-- SQLNESS REPLACE (peers.*) REDACTED
EXPLAIN SELECT y FROM (SELECT x AS y FROM (SELECT a AS x FROM t) sq1) sq2 ORDER BY y;

+-+-+
| plan_type_| plan_|
+-+-+
| logical_plan_| MergeSort: sq2.y ASC NULLS LAST_|
|_|_MergeScan [is_placeholder=false, remote_input=[_|
|_| Sort: sq2.y ASC NULLS LAST_|
|_|_Projection: sq2.y_|
|_|_SubqueryAlias: sq2_|
|_|_Projection: sq1.x AS y_|
|_|_SubqueryAlias: sq1_|
|_|_Projection: t.a AS x_|
|_|_TableScan: t_|
|_| ]]_|
| physical_plan | SortPreservingMergeExec: [y@0 ASC NULLS LAST]_|
|_|_MergeScanExec: REDACTED
|_|_|
+-+-+

SELECT x, x + 1 AS y FROM (SELECT a AS x FROM t) sq ORDER BY x;

+---+---+
| x | y |
+---+---+
| 1 | 2 |
| 2 | 3 |
| 3 | 4 |
+---+---+

-- expected:
-- (x,y)
-- (1,2)
-- (2,3)
-- (3,4)
-- SQLNESS REPLACE (-+) -
-- SQLNESS REPLACE (\s\s+) _
-- SQLNESS REPLACE (RoundRobinBatch.*) REDACTED
-- SQLNESS REPLACE (Hash.*) REDACTED
-- SQLNESS REPLACE (peers.*) REDACTED
EXPLAIN SELECT x, x + 1 AS y FROM (SELECT a AS x FROM t) sq ORDER BY x;

+-+-+
| plan_type_| plan_|
+-+-+
| logical_plan_| MergeSort: sq.x ASC NULLS LAST_|
|_|_MergeScan [is_placeholder=false, remote_input=[_|
|_| Sort: sq.x ASC NULLS LAST_|
|_|_Projection: sq.x, CAST(sq.x AS Int64) + Int64(1) AS y_|
|_|_SubqueryAlias: sq_|
|_|_Projection: t.a AS x_|
|_|_TableScan: t_|
|_| ]]_|
| physical_plan | SortPreservingMergeExec: [x@0 ASC NULLS LAST]_|
|_|_MergeScanExec: REDACTED
|_|_|
+-+-+

SELECT a FROM ((SELECT a FROM t1) UNION ALL (SELECT a FROM t2)) u ORDER BY a;

+---+
| a |
+---+
| 1 |
| 2 |
| 3 |
| 3 |
+---+

-- expected: 1,2,3,3
-- SQLNESS REPLACE (-+) -
-- SQLNESS REPLACE (\s\s+) _
-- SQLNESS REPLACE (RoundRobinBatch.*) REDACTED
-- SQLNESS REPLACE (Hash.*) REDACTED
-- SQLNESS REPLACE (peers.*) REDACTED
EXPLAIN SELECT a FROM ((SELECT a FROM t1) UNION ALL (SELECT a FROM t2)) u ORDER BY a;

+-+-+
| plan_type_| plan_|
+-+-+
| logical_plan_| Sort: u.a ASC NULLS LAST_|
|_|_SubqueryAlias: u_|
|_|_Union_|
|_|_MergeScan [is_placeholder=false, remote_input=[_|
|_| Projection: t1.a_|
|_|_TableScan: t1_|
|_| ]]_|
|_|_MergeScan [is_placeholder=false, remote_input=[_|
|_| Projection: t2.a_|
|_|_TableScan: t2_|
|_| ]]_|
| physical_plan | SortPreservingMergeExec: [a@0 ASC NULLS LAST]_|
|_|_SortExec: expr=[a@0 ASC NULLS LAST], preserve_partitioning=[true]_|
|_|_InterleaveExec_|
|_|_MergeScanExec: REDACTED
|_|_MergeScanExec: REDACTED
|_|_|
+-+-+

SELECT u1.a
FROM (SELECT a FROM t1) u1
JOIN (SELECT a FROM t2) u2 ON u1.a = u2.a
ORDER BY u1.a;

+---+
| a |
+---+
| 3 |
+---+

-- expected: 3
-- SQLNESS REPLACE (-+) -
-- SQLNESS REPLACE (\s\s+) _
-- SQLNESS REPLACE (RoundRobinBatch.*) REDACTED
-- SQLNESS REPLACE (Hash.*) REDACTED
-- SQLNESS REPLACE (peers.*) REDACTED
EXPLAIN SELECT u1.a
FROM (SELECT a FROM t1) u1
JOIN (SELECT a FROM t2) u2 ON u1.a = u2.a
ORDER BY u1.a;

+-+-+
| plan_type_| plan_|
+-+-+
| logical_plan_| Sort: u1.a ASC NULLS LAST_|
|_|_Projection: u1.a_|
|_|_Inner Join: u1.a = u2.a_|
|_|_MergeScan [is_placeholder=false, remote_input=[_|
|_| SubqueryAlias: u1_|
|_|_Projection: t1.a_|
|_|_Filter: t1.a IS NOT NULL_|
|_|_TableScan: t1, partial_filters=[t1.a IS NOT NULL]_|
|_| ]]_|
|_|_MergeScan [is_placeholder=false, remote_input=[_|
|_| SubqueryAlias: u2_|
|_|_Projection: t2.a_|
|_|_Filter: t2.a IS NOT NULL_|
|_|_TableScan: t2, partial_filters=[t2.a IS NOT NULL]_|
|_| ]]_|
| physical_plan | SortPreservingMergeExec: [a@0 ASC NULLS LAST]_|
|_|_SortExec: expr=[a@0 ASC NULLS LAST], preserve_partitioning=[true]_|
|_|_REDACTED
|_|_MergeScanExec: REDACTED
|_|_MergeScanExec: REDACTED
|_|_|
+-+-+

SELECT x FROM (VALUES (2),(1)) v(x) ORDER BY x;

+---+
| x |
+---+
| 1 |
| 2 |
+---+

-- expected: 1,2
-- SQLNESS REPLACE (-+) -
-- SQLNESS REPLACE (\s\s+) _
-- SQLNESS REPLACE (RoundRobinBatch.*) REDACTED
-- SQLNESS REPLACE (Hash.*) REDACTED
-- SQLNESS REPLACE (peers.*) REDACTED
EXPLAIN SELECT x FROM (VALUES (2),(1)) v(x) ORDER BY x;

+-+-+
| plan_type_| plan_|
+-+-+
| logical_plan_| Sort: v.x ASC NULLS LAST_|
|_|_SubqueryAlias: v_|
|_|_Projection: column1 AS x_|
|_|_Values: (Int64(2)), (Int64(1))_|
| physical_plan | SortExec: expr=[x@0 ASC NULLS LAST], preserve_partitioning=[false] |
|_|_ProjectionExec: expr=[column1@0 as x]_|
|_|_DataSourceExec: partitions=1, partition_sizes=[1]_|
|_|_|
+-+-+

SELECT x FROM (SELECT a AS x FROM t) sq ORDER BY x LIMIT 2;

+---+
| x |
+---+
| 1 |
| 2 |
+---+

-- expected: 1,2
-- SQLNESS REPLACE (-+) -
-- SQLNESS REPLACE (\s\s+) _
-- SQLNESS REPLACE (RoundRobinBatch.*) REDACTED
-- SQLNESS REPLACE (Hash.*) REDACTED
-- SQLNESS REPLACE (peers.*) REDACTED
EXPLAIN SELECT x FROM (SELECT a AS x FROM t) sq ORDER BY x LIMIT 2;

+-+-+
| plan_type_| plan_|
+-+-+
| logical_plan_| Limit: skip=0, fetch=2_|
|_|_MergeSort: sq.x ASC NULLS LAST_|
|_|_MergeScan [is_placeholder=false, remote_input=[_|
|_| Limit: skip=0, fetch=2_|
|_|_Sort: sq.x ASC NULLS LAST_|
|_|_Projection: sq.x_|
|_|_SubqueryAlias: sq_|
|_|_Projection: t.a AS x_|
|_|_TableScan: t_|
|_| ]]_|
| physical_plan | SortPreservingMergeExec: [x@0 ASC NULLS LAST], fetch=2_|
|_|_SortExec: TopK(fetch=2), expr=[x@0 ASC NULLS LAST], preserve_partitioning=[true]_|
|_|_MergeScanExec: REDACTED
|_|_|
+-+-+

DROP TABLE t;

Affected Rows: 0

DROP TABLE t1;

Affected Rows: 0

DROP TABLE t2;

Affected Rows: 0